Runnable class

What will be the result of compiling the following code: public class ThreadTest { public static void main(String[] args) throws InterruptedException { Thread thread = new Thread(new TestThread()); System.out.println("Hello, it's a main thread"); thread.start(); thread.join(); System.out.println("Good bye"); } } class TestThread implements Runnable { @Override public void run() { System.out.println("Hello, it's a simple thread"); } public void join() { System.out.println("Hello, it's a method join()"); } }